- Now until January 02 2019 the Mercedes-Benz Certified Pre-Owned Sales Event rates on Model Years 2015, 2016, and 2017 C-, E-, CLA-, GLA-, and S- Class (sedan) vehicles are as low as 1.99% from 24 up to 48 months as well as model year 2015 M-Class, and model years 2015 and 2016 GL-Class, as well as model years 2016 and 2017 GLE-, GLC-Class vehicles and 1.99% from 24 up to 48 months on model year 2017 GLS-Class vehicles. Call us today for details. Certain restrictions apply.